Deep Vision

(Complete Psionic, page 49, DnD 3.5)

[Psionic]

Your mental focus helps you see farther with darkvision.

Prerequisite

Darkvision

Benefit

While you are psionically focused, the effective distance of your natural darkvision increases by 30 feet.

Special

This feat affects only permanent darkvision gained as part of a creature's race, type, or class, not from impermanent effects such as the darkvision spell or goggles of night.